Finding the Fourth Proportional to 2,758.74, 4,139.46 and 1,116.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.74 : 4,139.46 = 1,116.47 : x
2. Step 2: Convert to fraction form
   2,758.74/4,139.46 = 1,116.47/x
3. Step 3: Cross multiply
   2,758.74x = 4,139.46 × 1,116.47
4. Step 4: Simplify right side
   2,758.74x = 4,621,562.21
5. Step 5: Solve for x
   x = 4,621,562.21/2,758.74
6. Step 6: Final answer
   x = 1,675.24